Very surprised to see I was 30 secs quicker and 12 bpm down .....on my road bike....!
It does have clip ons and is very light but I was expecting to be 3-5 mins slower... possibly more as that was the most fatigued / tired I have ever completed it.
Sort of pleased sort of pi..ed off sort of confused!
_________________Keep Triing

Very surprised to see I was 30 secs quicker and 12 bpm down .....on my road bike....!
It does have clip ons and is very light but I was expecting to be 3-5 mins slower... possibly more as that was the most fatigued / tired I have ever completed it.
Sort of pleased sort of pi..ed off sort of confused!

Well you're not carrying around the weight of that heavy wallet any more

It may about to be made even lighter....?!
Local shop has some lightweights, mk 2 I think?
Customer owns them but completely unused....?!

Tempted....!

Remember that aero trumps weight, and Lightweights have never been near the top of the aero pile. What helmet are you using and is your position optimised?
_________________27 Years since it all began....

I did my own very basic aero testing last year between road and tri bike and whilst the overall trend was pretty clear cut there were enough anomalies to completely skew the result if they alone had been the sample.

The biggest variable was a brand new, help to get on skin suit.
The road bike run was in this, the Tt ones weren't.

I get aero trumps weight, but if I can have a mix of both I'll take it.
With hunters every 10k or so the total climbing extrapolated to an IM would be over 6000 ft + so weight plays its part it's also quite twisty turny so you don't get the head down benefit of dual carriage way Tt bike blast.

The weather was very similar. Sunny, wind blowing in a similar direction, not very scientific I know.

It was the second time I had ever used this road bike as it hasn't got di2 as it would have been too heavy.

Helmet the same LG Super with visor.

Huge disparity in Saddle height.... nearly 40 mm.... which may play a part.

The biggest variable was a brand new, help to get on skin suit.
The road bike run was in this, the Tt ones weren't.

I get aero trumps weight, but if I can have a mix of both I'll take it.
With hunters every 10k or so the total climbing extrapolated to an IM would be over 6000 ft + so weight plays its part it's also quite twisty turny so you don't get the head down benefit of dual carriage way Tt bike blast.

The weather was very similar. Sunny, wind blowing in a similar direction, not very scientific I know.

It was the second time I had ever used this road bike as it hasn't got di2 as it would have been too heavy.

Helmet the same LG Super with visor.

Huge disparity in Saddle height.... nearly 40 mm.... which may play a part.

Saddle difference is massive so could very well be a large factor, but you do seem to have an slight obsession with weight?

I pretty much completely ignore that part these days and only focus on aero, even on courses with 10,000+ ft climbing over the IM distance. Looking at stats I spend more time on the flats than on the climbs on those as well.

I don't know how lean you are, or the speeds you travel at, but I certainly know personally where the biggest weight loss can be found. And it ain't the bike... _________________Where the mind goes the body follows.